This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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v. To cause to become liquid, especially:

v. To melt (a solid) by heating.

v. To condense (a gas) by cooling.

verb-intransitive. To become liquid.

v. To make into a liquid, either by condensing a gas or by melting a solid.

v. To make into a liquid by mashing, such as by using a blender.

v. To convert from a solid form to that of a liquid; to melt; to dissolve; and technically, to melt by the sole agency of heat.

v. To convert from a gaseous form into a liquid.

verb-intransitive. To become liquid.

To make liquid; melt, as a solid, or compress, as a gas, into a liquid state.

To become liquid.

v. make (a solid substance) liquid, as by heating

v. become liquid or fluid when heated

v. become liquid

"Speaking of which, the "i" in "ify" is there strictly for convenience, and is replaced by an "e" in such verbs as liquefy, which is another way of saying drinkify, and may yet catch on in the boardrooms of PepsiCo."

solidify    coagulate    congeal   

liquefied    liquefies    liquefying   

change    modify    alter    turn    change state   

freeze    solidify    vaporize   

liquidate   

liquefied   

liquefied    liquefying   

melt    dissolve    fluidify    liquidize    fuse    thaw    flux    liquesce    deliquesce    liquate